The best evidence to support the underlined statement, "They are excellent helpers for those that are partially or fully paralyzed and for those with a variety of other disabilities," is:
B. For example, some people have mobility issues due to cerebral palsy, multiple sclerosis, spinal cord injuries, Parkinson's disease, fibromyalgia, and many others.
This sentence provides specific examples of disabilities that affect mobility, directly supporting the claim about the assistance provided by mobility dogs to individuals with various mobility impairments.